Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 306

March 18, 2006Lea County, New Mexico; 28 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 18, 2006, 4:13 PM MST for Lea County, New Mexico; 28 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Mar 18, 2006, 4:13 PM MST (23:13 UTC)
Expired: Mar 18, 2006, 6:15 PM MST
In force: 2 hr
Issued by: the Storm Prediction Center

All 29 counties

Lea County, NM, Andrews County, TX, Borden County, TX, Coke County, TX, Crane County, TX, Crockett County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Loving County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Reeves County, TX, Schleicher County, TX, Scurry County, TX, Sterling County, TX, Terry County, TX, Tom Green County, TX, Upton County, TX, Ward County, TX, Winkler County, TX

The radar

The Midland/Odessa radar (KMAF), 26 km from the middle of the area, began a volume at 23:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 94Mar 18, 6:15 PM MST

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 11.2 hours before the alert went out and 27 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 474 m²/s²
0-3 km storm-relative helicity: 401 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 17, 5:29 PM MST	Mesoscale Discussion	SPC	Crane, Crockett, Pecos, Terrell, Upton, Val Verde	91 min
Mar 18, 4:26 AM MST	Mesoscale Discussion	SPC	Andrews, Borden, Brown, Callahan, Coke, Coleman and 28 more	34 min
Mar 18, 5:31 AM MST	Mesoscale Discussion	SPC	Armstrong, Baylor, Borden, Briscoe, Callahan, Childress and 40 more	29 min
Mar 18, 8:26 AM MST	Mesoscale Discussion	SPC	Archer, Armstrong, Baylor, Bosque, Briscoe, Callahan and 55 more	3 hr
Mar 18, 10:04 AM MST	Severe Thunderstorm Watch	SPC	Anderson, Archer, Baylor, Borden, Bosque, Briscoe and 72 more	4 hr
Mar 18, 12:30 PM MST	Mesoscale Discussion	SPC	Archer, Baylor, Borden, Bosque, Callahan, Castro and 55 more	2 hr

Nearby

Mesoscale Discussions in Texas, 2006 Mesoscale Discussions in New Mexico, 2006 Every mesoscale discussion in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.